A269201 -id:A269201 - cp's OEIS frontend

A269207 Number of 7Xn 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three no more than once.

16384, 8787660, 2380537188, 672230393004, 179867149105740, 47121391706947500, 12093315071771856492, 3057161412747926879388, 763401355846887190121676, 188738443220730807440394588, 46278051540027048274339056012

Offset: 1

R. H. Hardin, Feb 20 2016

nonn

Row 7 of A269201.

			Some solutions for n=2
..0..0. .0..0. .0..0. .0..0. .0..0. .0..0. .0..0. .0..0. .0..0. .0..0
..0..0. .0..0. .0..0. .0..0. .0..0. .0..0. .0..0. .0..0. .0..0. .0..0
..2..2. .1..0. .0..1. .3..1. .0..1. .0..0. .0..0. .2..0. .1..1. .2..2
..0..2. .0..0. .0..0. .3..2. .0..1. .2..0. .0..0. .2..2. .1..3. .2..0
..2..1. .2..2. .2..0. .0..1. .3..1. .2..2. .0..2. .1..0. .1..3. .2..0
..0..2. .1..3. .2..3. .0..2. .3..3. .0..0. .0..0. .0..0. .3..1. .2..3
..3..1. .1..3. .1..3. .3..2. .0..2. .1..1. .0..2. .2..0. .3..2. .2..3

R. H. Hardin, Table of n, a(n) for n = 1..210

Cf. A269201.

A269195 Number of n X n 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three no more than once.

Original entry on oeis.org

4, 180, 25572, 15289548, 34838403756, 320994710282892, 12093315071771856492, 1887658657444603460395332, 1230222115345954315761363474780, 3366670969596963372379333414861881876

Offset: 1

R. H. Hardin, Feb 20 2016

nonn

Diagonal of A269201.

			Some solutions for n=3
..0..2..0. .0..1..0. .3..1..3. .0..0..1. .1..0..0. .3..1..2. .0..0..0
..0..1..3. .1..1..1. .0..3..3. .0..0..1. .1..0..1. .3..2..0. .2..0..0
..0..1..3. .3..1..3. .3..1..1. .0..1..0. .3..3..1. .2..2..0. .2..0..1

Cf. A269201.

cp's OEIS Frontend

A269207 Number of 7Xn 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three no more than once.

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